They moved out of the foothills and into the plains (near rivers). The rivers provided more opportunities for food growth.
Slaves fled to Canada to gain freedom, so the Canadian population grew.
B
President Truman declared the US's intervention as "police action" and did not declare war formally.
The aftermath of World War II was the beginning of an era defined by the decline of the old great powers and the rise of two superpowers: the Soviet Union (USSR) and the United States of America (USA), creating a bipolar world. Europe was divided into a US-led Western Bloc and a Soviet-led Eastern Bloc.
